commonly understood to be the world’s strongest player at the time
Small nitpick - Lee was not the strongest player at the time. According to Gorating's history page on 2016-01-01, Lee was the 4th best player at the time, neck-and-neck with Mi Yuting and Shi Yue. You might be thinking of Ke Jie, who was the strongest player at the time and also battled Alphago the next year.
Small nitpick - Lee was not the strongest player at the time. According to Gorating's history page on 2016-01-01, Lee was the 4th best player at the time, neck-and-neck with Mi Yuting and Shi Yue. You might be thinking of Ke Jie, who was the strongest player at the time and also battled Alphago the next year.